21521208 (number)

21521208 is an even 8-digits composite number following 21521207 and preceding 21521209. In scientific notation, it is written as 2.1521208 × 10^7. The sum of its digits is 21. It has a total of 5 prime factors and 16 positive divisors. There are 7173728 positive integers (up to 21521208) that are relatively prime to 21521208.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred twenty-one thousand two hundred eight

Notation

Scientific notation 2.1521208 × 10^7
Engineering notation 2.1521208 × 10^6

Prime Factorization of 21521208

Prime Factorization 2 × 2 × 2 × 3 × 896717

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5380302
Product of the distinct prime numbers

The prime factorization of 21521208 is 2 × 2 × 2 × 3 × 896717. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 7, 4, 62, 745, 952, 1374, 3796, 21056, 50516, 749501, 879291, 804229, 8648838, 61427389, 67714331, 865186630, 723356534, 6332860476, 7612635447

Basic calculations (n = 21521208)

Multiplication

n×y
n×2 43042416
n×3 64563624
n×4 86084832
n×5 107606040

Division

n÷y
n÷2 10760604
n÷3 7173736
n÷3 5380302
n÷5 4304241.6

Exponentiation

ny
n2 463162393779264
n3 9.9678142143014E+21
n4 2.1451940301134E+29
n5 4.6167166922428E+36

Nth Root

y√n
2√n 4639.0956015155
3√n 278.15628773967
4√n 68.110906626732
5√n 29.280152139544

Divisors of 21521208

1, 2, 3, 4, 6, 8, 12, 24, 896717, 1793434, 2690151, 3586868, 5380302, 7173736, 10760604, 21521208

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21521207
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21521208 can be divided by 16 positive divisors. The sum of these divisors (counting 21521208) is 1, the average is 0.0625.

Base conversion 21521208

Base System Value
2 Binary 1010010000110001100111000
3 Ternary 1111111101112210
4 Quaternary 1102012030320
5 Quinary 21002134313
6 Senary 2045135120
8 Octal 122061470
10 Decimal 21521208
12 Duodecimal 725a4a0
16 Hexadecimal 1486338
20 Vigesimal 6ea308
36 Base36 ct9vc

Cryptographic Hash Functions

md5 1dab131898f9b75941969028661b89e2
sha1 d6dca47f5996fdfdf2b4320d4808d87bd885b303
sha256 3593a918c7dfe67e5e9cd3b83aea08fd596035ca80a5d751a82e1be902374117
sha512 4289c77db2f62f1fcd6e9d8e0c27b8fa40f15ee0efdb4cc191ef6fc37e7388960fc9a682341c37704a69cd7e356c065101cd2c023af2e3754807cf2eb9c5731f
ripemd-160 c1abc45aa3157ac2ae5070d1ef0264b3a6b3b7ab

21521208 as geometric shapes

Circle

Radius = n
Diameter 43042416
Circumference 135221737.89836
Area 1.455067573716E+15

Sphere

Radius = n
Volume 4.1753082543996E+22
Surface area 5.820270294864E+15
Circumference 135221737.89836

Square

Length = n
Perimeter 86084832
Area 463162393779264
Diagonal 30435584.232252

Cube

Length = n
Surface area 2778974362675584
Volume 9.9678142143014E+21
Space diagonal 37275825.696258

Equilateral Triangle

Length = n
Perimeter 64563624
Area 2.0055519954523E+14
Altitude 18637912.848129

Triangular Pyramid

Length = n
Surface area 2.0055519954523E+14
Volume 1.1747181707567E+21
Height 10145194.744084